They told police in October that the Halls, through a swingers' website, asked them if
they had a young daughter that they were willing to involve in sexual activity.

Birch Run police began investigating and
Daniel Hall eventually made the same request to an undercover officer, Becker said.

Search warrants were obtained and after
an I.P. address revealed the couple's location, their home was searched in
January.

Four computers were taken from the home,
the images were found, and the couple was arrested and sent to Saginaw County
Jail on Saturday, Becker said.

It was determined that the case fell within
the jurisdiction of Mt. Morris police and Genesee County law enforcement took over,
searching the home again and transferring the couple to Genesee County Jail on
Tuesday, Becker said.

"Fortunately, the couple in Birch Run realized something was wrong and alerted the
authorities," said Genesee County Prosecutor David Leyton.

Becker said he and Officer Tom Plumb worked around the clock to pick up where Birch Run police left off, and on Tuesday secured a confession
from Alisha Hall.

"We worked 40 hours of police work in the
last two days getting this together," Becker said Wednesday. "We have a very strong case
and these two are going away for life."

Suspect's father was convicted rapist

Daniel Hall is the son of Jack D. Hall, convicted in
the 1999 rape and attempted murder of two 8- and 14-year-old girls in
Vienna Township and in the kidnapping of a woman in 1993, said Becker and Leyton.

View full size(Michigan Departmet of Corrections)Jack Hall, 47, is serving at life sentence at G. Robert Cotton Correctional Facility in Jackson for the kidnapping of a woman in 1993 and the rape and attempted murder of two Clio-area girls in 1999.

He
surrendered to police on July 28, 1999 after two days of hiding in
tunnels and creek beds in a large wooded area near his mother's home in
Thetford Township, according to Flint Journal archives.

He had
been the focus of a manhunt that began after two Clio-area sisters were
were forced at knife-point into woods near of a bike trail in Vienna
Township.

Before surrendering to Genesee County Sheriff Robert
Pickell, Hall ambushed a female deputy, stole her weapon, engaged in a
shootout with police and escaped into the woods, according to Journal
files.

Jack Hall was then explored as a suspect in the slayings
of two other women and was found guilty of a 1993 kidnapping, according
to corrections records.

Leyton said the connection to Jack Hall was just another disturbing fact in one of the most alarming cases he's seen.

"It's a very disturbing set of
facts," Leyton said. "It's as bad as anything I've ever been presented with."